An extremely rare case of pseudomelanosis of the urinary bladder.

Pseudomelanosis (PM) is a rare, benign, condition that is characterized by deposition of melanin and/or melanin-like pigment in mucosal cells and macrophages and is best known as the entity pseudomelanosis coli. Pseudomelanosis primary of the urinary bladder has been reported only in a handful of cases worldwide. This article reports an extremely rare case of pseudomelanosis of the urinary bladder in a 79-year-old male with a history of macroscopic painless hematuria.

Fulminant presentation of oral mucosal leishmaniasis as severe stomatitis and periodontitis.

This case report shows an atypical presentation of mucosal leishmaniasis infantum in the oral cavity resulting in severe stomatitis and periodontitis. The patient was immunocompromised because of rheumatoid arthritis for which he used prednisone and methotrexate. He was treated with intravenous liposomal amphotericin B and recovered within four weeks.